Juliana Stuginski-Barbosa1, André Luís Porporatti2, Yuri Martins Costa2, Peter Svensson3,4,5, Paulo César Rodrigues Conti2. 1. Department of Prosthodontics, Bauru School of Dentistry, University of São Paulo, Al. Octávio Pinheiro Brisola, 9-75, Bauru, SP, Brazil, 17012-901. juliana.dentista@gmail.com. 2. Department of Prosthodontics, Bauru School of Dentistry, University of São Paulo, Al. Octávio Pinheiro Brisola, 9-75, Bauru, SP, Brazil, 17012-901. 3. Dr. Odont, Section of Clinical Oral Physiology, School of Dentistry, Aarhus University, Aarhus, Denmark. 4. Department of Dental Medicine, Karolinska Institute, Huddinge, Sweden. 5. Scandinavian Center for Orofacial Neurosciences (SCON), Stockholm, Sweden.
Abstract
PURPOSE: The aim of this study was to determine an appropriate cutoff value and the number of nights of sleep with the portable single-channel EMG device (GrindCare) necessary for a valid sleep bruxism (SB) diagnosis. METHODS: Twenty consecutive post-graduate students and staff at Bauru School of Dentistry composed the sample. Each participant underwent the GrindCare for five consecutive nights and the polysomnography (PSG). The discrimination between bruxers and non-bruxers was based only on the PSG analysis. Data about electromyography per hour with GrindCare (EMG/h) and PSG (bursts/h) were scored. RESULTS: There were positive correlations between the two devices for EMG/h and bursts/h in three and five consecutive nights. Bland-Altman analysis of the EMG bursts/h showed positive agreement between the methods. The receiver operating characteristic (ROC) analyses also showed that using a minimum of 18 EMG/h for three nights and 19 EMG/h for five nights in GrindCare as cutoffs resulted in a 90 % specificity and positive likelihood ratio equal to 5. CONCLUSIONS: GrindCare is able to discriminate SB diagnosed by PSG and gold standard criteria, when used for three or five consecutive nights, and it may be a valid choice in clinical practice for SB assessment.
PURPOSE: The aim of this study was to determine an appropriate cutoff value and the number of nights of sleep with the portable single-channel EMG device (GrindCare) necessary for a valid sleep bruxism (SB) diagnosis. METHODS: Twenty consecutive post-graduate students and staff at Bauru School of Dentistry composed the sample. Each participant underwent the GrindCare for five consecutive nights and the polysomnography (PSG). The discrimination between bruxers and non-bruxers was based only on the PSG analysis. Data about electromyography per hour with GrindCare (EMG/h) and PSG (bursts/h) were scored. RESULTS: There were positive correlations between the two devices for EMG/h and bursts/h in three and five consecutive nights. Bland-Altman analysis of the EMG bursts/h showed positive agreement between the methods. The receiver operating characteristic (ROC) analyses also showed that using a minimum of 18 EMG/h for three nights and 19 EMG/h for five nights in GrindCare as cutoffs resulted in a 90 % specificity and positive likelihood ratio equal to 5. CONCLUSIONS: GrindCare is able to discriminate SB diagnosed by PSG and gold standard criteria, when used for three or five consecutive nights, and it may be a valid choice in clinical practice for SB assessment.
Authors: W Yachida; E E Castrillon; L Baad-Hansen; R Jensen; T Arima; A Tomonaga; N Ohata; P Svensson Journal: J Dent Res Date: 2012-04-18 Impact factor: 6.116
Authors: Paulo César R Conti; Juliana Stuginski-Barbosa; Leonardo R Bonjardim; Simone Soares; Peter Svensson Journal: Oral Surg Oral Med Oral Pathol Oral Radiol Date: 2013-10-31
Authors: Tomi Miettinen; Katja Myllymaa; Anu Muraja-Murro; Susanna Westeren-Punnonen; Taina Hukkanen; Juha Töyräs; Reijo Lappalainen; Esa Mervaala; Kirsi Sipilä; Sami Myllymaa Journal: Sleep Breath Date: 2019-08-12 Impact factor: 2.816